See also:

Fuel quality
Fuels that are marked on the gas pump as containing metal must not be used. Refuel only with unleaded gasoline without metallic additives. Do not refuel with any leaded gasoline or gasoline ...

Head restraints
Correctly adjusted head restraintA correctly adjusted head restraint reduces the risk of neck injury in the event of an accident. Adjust the head restraint in such a way that its center is at ap ...

Shoulder support
Also supports the back in the shoulder area: Results in a relaxed seating position. Reduces strain on the shoulder muscles. ...